Railway-tie.



W. WALKER.

RAILWAY TIE.

APPLICATION FILED JAN. 3. 1914.

1,123,963. Patented Jan.5,1915.

THE NORRIS PETERS (20.. PHOTO-LITHO.. WASHINGTON. D. C

WILLIAM WALKER, OF OTTAWA, ONTARIO, CANADA.

RAILWAY-TIE.

Specification of Letters Patent.

Patented J an. 5, 1915.

Application filed January 3, 1914. Serial No. 810,155.

To all whom it may concern Be it known that 1, WILLIAM WALKER, a subjectof the King of Great Britain, and resident of the city of Ottawa,Province of Ontario, Dominion of Canada,have invented certain new anduseful Improvements in Railway-Ties, and do hereby declare that thefollowing is a full, clear, and exact description of the same, such aswill enable those skilled in the art to which it appertains to make anduse the same.

My invention relates to reinforced concrete ties and particularly refersto that type of tie utilized in railway practice, and the objects of theinvention are to facilitate the securing of rails to such ties or theirremoval therefrom, to give a longer life to the ties, to dispense withthe use of spikes and to generally overcome the objectionable featuresassociated with the use of wooden and other ties as found in use onrailways, and it consists essentially of a reinforced concrete tie andchair particularly described in the following specification.

Figure 1 is a side elevation partly sectional of an improved form oftie. Fig. 2 is a side elevation partly sectional showing an alternateform of reinforcing tie. Fig. 3 is a plan view of Figs. 1 and 2. Fig. 4is an end elevation partly sectional showing the reinforcing rodslocated in the tie.

Like letters of reference refer to like parts in the several drawings.

Referring to the drawings, A represents the reinforced concrete tiewhich is substantially rectangular in cross section and provided with achair 15 located in its upper face, the base of such chair extendingpartially through the said tie. The chair 15 may be of any suitable formand comprises an inner and an outer jaw 16 and 17, said inner jaw beingprovided with a recess 18 suitably formed at the base thereof anddesigned to engage with a flange or a bullhead of the rail locatedbetween the said jaws. The base of the said chair consists of twodownwardly projecting bars 19 extending transversely across the base ofthe said chair and being formed with wedge shaped recesses locatedaround the outer edges thereof, such recesses being designed to engagewith the concrete of the tie and form an anchoring means for the saidchair. The said bars 19 are further provided with orifices 20 extendingtherethrough, such orifices being adapted to engage with reinforcingrods 21 located in the said tie and extending longitudinally therein,such reinforcing rods forming a further anchoring means for the said barand preventing such chair from becoming loose, due to vibration or anyother cause.

In Fig. 2 the upper reinforcing rod is shown slightly bent and this formof rod is designed to prevent any movement of the chair which mightotherwise occur when a straight rod is used, such as is shown in Fig. 1.It will, however, be understood that although two forms of reinforcingrods adapted to hold the chair 15 in position are here shown that thespecial features and shape of the rod can only be determined byexperimental use of such a tie, so that such forms must not be taken asaltogether binding, but adapted to be altered as the applicant findsdesirable. Further, the outer jaw of the chair 15 is provided with astrengthening rib 22 and should it be found desirable it will beunderstood that a similar strengthening rib could be added to the innerjaw of the said chair. The location of the reinforcing rods is likewisea matter which can only be determined with great difliculty, but in theillustrations here submitted they are shown with the lower rods fartherseparated apart than the upper rods, thereby distributing the stressmore evenly throughout the reinforced concrete tie.

The formation of the jaws adapted to en gage with the key or wedge piece23 is suit ably formed and may be either substantially right angular tothe top face of the tie A or formed with grooves.

Having described my invention I will now show the manner in which it isused.

The tie is placed on the bed prepared for it, and well packed withrubble and the like. When a desired number of ties have been arranged intheir proper relative positions the rail B is located between the jaws16 and 17 of the chair 15, the flange or bullhead of the rail engagingwith the recess 18, the rail being secured in position by means of thewedge 23 located between the web of the said rail B and the inner faceof the outer gripping jaw 1'7, such wedge when driven in securing therail 13 firmly in position. Any undue strain of vibration caused by therolling stock passing over such a tie A is taken up by the reinforcingrods 21 located in the said block and any tendency of the chair 15becoming loose, due to such vibration, is

overcome by means of the edges 19 being embedded in the concrete of thetie.

As many changes could be made in the above construction and manyapparently widely diiferent embodiments of my invention, within thescope of the claims, constructed without departing from the spirit orscope thereof, it is intended that all matter contained in theaccompanying specification and drawings shall be interpreted asillustrative and not in a limiting sense.

\Vhat I claim as my invention is:

1. A reinforced concrete railway tie comprising a base, a chair locatedon the upper face thereof, the base of the said chair being providedwith bars extending transversely across the bottom thereof, such barsbeing designed to be located in the base of the said tie and havingorifices extending therethrough, and reinforcing rods extendinglongitudinally of the said tie and designed to engage with the saidorifices located in such bars, as and for the purpose specified.

2. A reinforced concrete railway tie comprising a base, a chair havingbars extending transversely across the bottom face thereof, such barsbeing provided with wedge shaped recesses on the outer edges, and meansof securing a rail to the said chair, as and for the purpose specified.

In witness whereof I have hereunto set my hand in the presence of twowitnesses.

WILLIAM WALKER.

lVitne'sses P. M. GARRow, M. MAHONEY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Iatents.

Washington, D. C.

